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C411 MCP Server

by julien-nc

MCP-сервер C411

MCP-сервер (Model Context Protocol) для поиска торрентов на c411.org, получения метаданных и комментариев к торрентам, а также скачивания файлов .torrent.

Содержание

Related MCP server: RuTracker MCP Server

Возможности

  • Поиск торрентов на c411.org

  • Получение подробных метаданных торрента по infoHash

  • Получение постраничных комментариев к торренту по infoHash

  • Скачивание файлов .torrent по infoHash

  • Автоматическое повторное использование аутентифицированных сессий

  • Повторные попытки при истечении срока действия авторизации с небольшой задержкой и ограничением количества попыток

  • Различение отсутствующих учетных данных, неверных учетных данных и ошибок режима обслуживания

  • Возврат структурированных результатов поиска с названиями, размерами, количеством сидов и infoHash (если доступно)

Установка

npm install

Использование

Запуск сервера

По умолчанию сервер использует транспорт stdio:

npm run dev

Или выполните сборку и запуск:

npm run build
npm start

Аутентификация

Для доступа к спискам торрентов на c411.org требуется аутентификация. Чтобы включить вход:

  1. Установите следующие переменные окружения:

    • C411_USERNAME: Ваше имя пользователя на c411.org

    • C411_PASSWORD: Ваш пароль на c411.org

  2. Сервер автоматически выполнит вход и будет поддерживать сессию.

Без учетных данных сервер может не получить результаты поиска.

Поведение при сбое аутентификации

Сервер пытается вернуть более конкретную ошибку при сбое аутентификации:

  • Отсутствующие учетные данные: запрашивает C411_USERNAME и C411_PASSWORD

  • Неверные учетные данные: сообщает, что имя пользователя/пароль были отклонены

  • Режим обслуживания: сообщает, что c411.org временно недоступен

  • Сетевые проблемы или тайм-ауты: возвращает очищенную ошибку транспорта без логирования учетных данных

HTTP-запросы прерываются по тайм-ауту через 10 секунд.

Настройка MCP-клиента

Чтобы использовать этот сервер с MCP-клиентом (например, Claude Desktop), добавьте в конфигурацию клиента:

{
  "mcpServers": {
    "c411": {
      "command": "node",
      "args": ["/path/to/c411-mcp-server/build/index.js"],
      "env": {
        "C411_USERNAME": "your_username",
        "C411_PASSWORD": "your_password"
      }
    }
  }
}

Для OpenCode настройте сервер в конфигурации OpenCode в разделе mcp, используя локальную запись MCP:

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "c411": {
      "type": "local",
      "command": ["node", "/path/to/c411-mcp-server/build/index.js"],
      "enabled": true,
      "environment": {
        "C411_USERNAME": "your_username",
        "C411_PASSWORD": "your_password"
      }
    }
  }
}

OpenCode документирует MCP-серверы под ключом mcp, где локальные серверы используют type: "local", массив command и environment для переменных окружения.

Вы также можете добавить его через CLI OpenCode:

opencode mcp add

Затем выберите локальный MCP-сервер и введите соответствующие значения:

  • name: c411

  • type: local

  • command: node /path/to/c411-mcp-server/build/index.js

  • environment:

    • C411_USERNAME=your_username

    • C411_PASSWORD=your_password

После этого вы можете проверить, что он был добавлен, с помощью:

opencode mcp list

Инструменты

Поиск торрентов на c411.org.

Параметры:

  • query (строка, обязательно): Поисковый запрос, обрезанный, от 1 до 200 символов

  • category (строка, опционально): Фильтр категории. Одно из 1, 2, 3, 4, 5, 6, 7, 10.

  • subcat (строка, опционально): Фильтр подкатегории. Действительно только если category равно 1.

  • sortBy (строка, опционально): Критерий сортировки. Одно из relevance, seeders, leechers, size, createdAt, name, completions, comments, category. По умолчанию relevance.

  • sortOrder (строка, опционально): Порядок сортировки. Одно из asc, desc. По умолчанию desc.

  • page (число, опционально): Номер страницы результатов. По умолчанию 1.

  • perPage (число, опционально): Количество результатов на страницу. По умолчанию 25, максимум 100.

Возвращает: Список результатов торрентов с названиями, размерами, количеством сидов и infoHash (если доступно).

list_my_c411_uploads

Список торрентов, загруженных текущим аутентифицированным пользователем c411.org.

Параметры:

  • query (строка, опционально): Поисковый запрос, обрезанный, от 1 до 200 символов.

  • category (строка, опционально): Фильтр категории. Одно из 1, 2, 3, 4, 5, 6, 7, 10.

  • subcat (строка, опционально): Фильтр подкатегории. Действительно только если category равно 1.

  • sortBy (строка, опционально): Критерий сортировки. Одно из relevance, seeders, leechers, size, createdAt, name, completions, comments, category. По умолчанию relevance.

  • sortOrder (строка, опционально): Порядок сортировки. Одно из asc, desc. По умолчанию desc.

  • page (число, опционально): Номер страницы результатов. По умолчанию 1.

  • perPage (число, опционально): Количество результатов на страницу. По умолчанию 100, максимум 100.

Возвращает: Список результатов торрентов для загрузок текущего пользователя, используя ту же структуру, что и search_c411.

get_c411_torrent_info

Получение подробных метаданных для торрента на c411.org.

Параметры:

  • infoHash (строка, обязательно): 40-символьный шестнадцатеричный infoHash торрента

Возвращает: Структурированные метаданные торрента, включая название, категорию, размер, количество сидов и личеров, количество завершений, загрузчика, дату создания, список файлов, данные TMDB (если доступны) и информацию о доверии.

get_c411_torrent_comments

Получение постраничных комментариев к торренту на c411.org.

Параметры:

  • infoHash (строка, обязательно): 40-символьный шестнадцатеричный infoHash торрента

  • page (число, опционально): Номер страницы комментариев. По умолчанию 1.

  • limit (число, опционально): Количество комментариев на страницу. По умолчанию 20, максимум 100.

Возвращает: Структурированные результаты комментариев с метаданными пагинации и нормализованными записями комментариев, включая HTML-контент, текстовый контент, информацию об авторе, временные метки и цели ответов (если присутствуют).

download_c411_torrent

Скачивание файла .torrent с c411.org и сохранение его на диск.

Параметры:

  • infoHash (строка, обязательно): 40-символьный шестнадцатеричный infoHash торрента

  • outputDir (строка, опционально): Директория, в которую должен быть сохранен файл .torrent. По умолчанию /tmp.

Возвращает: Полный путь к сохраненному файлу .torrent.

Пример:

infoHash: "178a3516f248e45f9857abbc2cbc8a8b20f29815"
outputDir: "/tmp"

Структура проекта

  • src/index.ts: только начальная загрузка; создает MCP-сервер и запускает stdio

  • src/c411-client.ts: логика аутентификации c411, повторных попыток, поиска, информации о торрентах, комментариев и скачивания

  • src/register-tools.ts: регистрация инструментов MCP

  • src/formatters.ts: вспомогательные функции форматирования и нормализации для поиска, информации о торрентах и комментариев

  • src/http-response-utils.ts: вспомогательные функции для парсинга ответов и обнаружения режима обслуживания

  • src/http-client.ts: изолированная настройка Axios + cookie-jar

  • src/schemas.ts: схемы инструментов Zod

  • src/types.ts: общие типы TypeScript

Разработка

  • npm run dev: Запуск в режиме разработки с горячей перезагрузкой

  • npm run build: Компиляция TypeScript в JavaScript

  • npm start: Запуск скомпилированного сервера

Примечания

  • Этот сервер предназначен только для личного использования

  • Соблюдайте условия обслуживания c411.org

  • Храните свои учетные данные в безопасности

  • Скрапер может потребовать обновлений, если структура веб-сайта изменится

Available Tools

4 tools
download_c411_torrentA

Download a .torrent file from c411.org by its infoHash and save it to disk.

ParametersJSON Schema
NameRequiredDescriptionDefault
infoHashYesThe 40-character hex infoHash of the torrent
outputDirNoDirectory where the .torrent file should be saved. Defaults to /tmp.

Output Schema

ParametersJSON Schema
NameRequiredDescription
errorNo
successYes
filenameNo
savedPathNo

TDQS

A4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations provided, so description carries full disclosure burden. Successfully discloses the side effect ('save to disk'), indicating filesystem mutation. However, lacks details on idempotency, network requirements, error handling (e.g., invalid hash), or output structure despite having an output schema available.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Single, dense sentence with zero waste. Front-loaded with the action verb, immediately communicating purpose. Every clause earns its place: source domain, identification method, and persistence mechanism are all efficiently packed.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Appropriate for a 2-parameter tool with full schema coverage and existing output schema. Covers the essential 'what' and 'where to' aspects. Minor gap: could briefly mention the return value indicates success/failure or file path since annotations are absent.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, establishing a baseline of 3. Description adds value by clarifying the infoHash's role in identifying the specific torrent to retrieve ('by its infoHash'), and implicitly connects the outputDir to the 'save to disk' action. Could mention the default /tmp behavior explicitly, but overall adds meaningful usage context.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Excellent specificity: states the verb ('Download'), resource ('.torrent file'), source ('c411.org'), identifier ('by its infoHash'), and side effect ('save to disk'). Clearly distinguishes from siblings 'get_c411_torrent_info' and 'search_c411' through the explicit action of downloading vs retrieving metadata or searching.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Provides implied usage context through the specific action ('download... save to disk'), but lacks explicit when-to-use guidance contrasting with siblings. Does not state prerequisites (e.g., valid c411.org infoHash) or error conditions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_c411_torrent_commentsA

Get comments for a c411.org torrent by its infoHash.

ParametersJSON Schema
NameRequiredDescriptionDefault
infoHashYesThe 40-character hex infoHash of the torrent
pageNoComment page number. Defaults to 1.
limitNoNumber of comments per page. Defaults to 20.

Output Schema

ParametersJSON Schema
NameRequiredDescription
pageYes
errorNo
limitYes
totalNo
commentsYes
infoHashYes
totalPagesNo
resultCountYes

TDQS

A3.8/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations provided, yet description fails to disclose behavioral traits: no mention of pagination behavior (despite page/limit params), rate limits, authentication requirements for c411.org, or handling of empty comment sets. 'Get' implies read-only but does not confirm it.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Single efficient sentence of 9 words. Front-loaded with verb, zero redundancy, every token carries meaning (domain, resource, identifier).

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Adequate for a read operation given 100% schema coverage and existence of output schema (which handles return value documentation). Could be improved by mentioning pagination or empty state handling, but functional for tool selection.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, establishing baseline 3. Description adds minimal semantics beyond schema—only linking infoHash to the retrieval operation via 'by its infoHash'. Schema already documents the 40-character hex pattern and pagination defaults.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Specific verb 'Get' + resource 'comments for a c411.org torrent' clearly identifies the operation. Explicitly distinguishes from siblings: targets comments (not download, info metadata, or search index) and specifies the external domain.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Provides clear context by identifying the specific resource (comments) and required identifier (infoHash), implicitly distinguishing from sibling torrent operations. However, lacks explicit workflow guidance (e.g., 'use after search_c411 to retrieve infoHash').

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_c411_torrent_infoA

Get detailed metadata for a c411.org torrent by its infoHash.

ParametersJSON Schema
NameRequiredDescriptionDefault
infoHashYesThe 40-character hex infoHash of the torrent

Output Schema

ParametersJSON Schema
NameRequiredDescription
sizeNo
tmdbNo
errorNo
filesNo
titleNo
trustNo
statusNo
seedersNo
successNo
categoryNo
infoHashYes
leechersNo
uploaderNo
createdAtNo
fileCountNo
sizeBytesNo
completionsNo
isExclusiveNo
isFreeleechNo
subcategoryNo
descriptionHtmlNo
lowBitrateWarningNo

TDQS

A3.6/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full disclosure burden but only states it's a read operation ('Get') targeting metadata. It fails to disclose what 'detailed metadata' specifically includes, error conditions for invalid hashes, rate limits, or caching behavior.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Single sentence of 10 words with zero waste. Front-loaded with action verb 'Get', immediately identifies the resource (c411.org torrent metadata), and specifies the lookup key (infoHash). Every word earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Appropriate for a simple 1-parameter tool with output schema present (no need to describe return values). Sufficient for invocation but could be improved by explicitly mentioning the sibling workflow (obtain hash via search_c411 first).

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% with the infoHash parameter fully documented including pattern validation. The description mentions 'by its infoHash' but adds no semantic meaning beyond the schema's existing '40-character hex infoHash' description, meeting the baseline for high-coverage schemas.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description uses specific verb 'Get' with clear resource 'detailed metadata for a c411.org torrent' and scope identifier 'by its infoHash'. This clearly distinguishes from sibling download_c411_torrent (content vs metadata), get_c411_torrent_comments (metadata vs comments), and search_c411 (specific hash lookup vs broad search).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The phrase 'by its infoHash' implicitly signals you must already possess the hash to use this tool, distinguishing it from search_c411. However, it lacks explicit guidance on the prerequisite workflow (search first, then this tool) or when to prefer alternatives.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

search_c411B

Search for torrents on c411.org

ParametersJSON Schema
NameRequiredDescriptionDefault
queryYesSearch query for torrents
sortByNoSort criteria for the search results. Defaults to relevance.relevance
sortOrderNoSort order for the search results. Defaults to desc.desc
pageNoResult page number. Defaults to 1.
perPageNoNumber of results per page. Defaults to 25.

Output Schema

ParametersJSON Schema
NameRequiredDescription
pageYes
errorNo
queryYes
totalNo
perPageYes
resultsYes
totalPagesNo
resultCountYes

TDQS

B3.1/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries full burden for behavioral disclosure. It states nothing about network requirements, rate limits, authentication, idempotency, or whether results are cached. The minimal description offers no behavioral context beyond the basic action.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The single sentence 'Search for torrents on c411.org' is appropriately sized with zero redundancy. It is front-loaded with the action and contains no filler text, making it efficiently scannable.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the 100% parameter schema coverage and presence of an output schema, the description does not need to elaborate on return values or parameter details. However, it lacks mention of the typical workflow (search → download/info) that would complete the context for an agent selecting among the four related tools.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

With 100% schema description coverage, the input schema fully documents all 5 parameters (query, sortBy, sortOrder, page, perPage). The description adds no additional semantic information beyond what the schema provides, which warrants the baseline score for high-coverage schemas.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb ('Search') and resource ('torrents on c411.org'), clearly identifying the tool's function. However, it does not explicitly differentiate from siblings like 'get_c411_torrent_info' (which retrieves specific torrent details by ID rather than searching).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It fails to mention that search results are typically prerequisite for using sibling tools like 'download_c411_torrent' or 'get_c411_torrent_info', or that this is the entry point for discovery.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

  1. 4 tool updatesv1.0.0
    • First observeddownload_c411_torrent
    • First observedget_c411_torrent_comments
    • First observedget_c411_torrent_info
    • First observedsearch_c411

TDQS

A3.8/5.0

Scored across 4 tools

Disambiguation5/5

Each tool has a clearly distinct purpose: downloading torrent files, retrieving comments, getting metadata, and searching. The descriptions specify unique actions on the same domain (c411.org torrents), with no overlap that would cause misselection.

Naming Consistency5/5

All tool names follow a consistent verb_noun pattern with 'c411' as a prefix (e.g., download_c411_torrent, search_c411). The naming is uniform, using snake_case throughout and clear action descriptors.

Tool Count5/5

With 4 tools, the server is well-scoped for interacting with a torrent search site. Each tool serves a distinct function (search, info, comments, download), making the count appropriate and efficient for the domain.

Completeness4/5

The toolset covers core operations for torrent discovery and retrieval (search, get info, get comments, download), with no obvious dead ends. A minor gap might be the lack of upload or management tools, but for a client-focused server, this is reasonable.

Maintenance

ActivityInactive
ResponsivenessNo issues

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